diff --git a/src/PDF/Object/Navigation.hs b/src/PDF/Object/Navigation.hs
index cabfeec..fc8a7d1 100644
--- a/src/PDF/Object/Navigation.hs
+++ b/src/PDF/Object/Navigation.hs
@@ -6,6 +6,7 @@
 {-# LANGUAGE FlexibleInstances #-}
 module PDF.Object.Navigation (
       Error(..)
+    , PDFContent
     , StreamContent(..)
     , (./)
     , (//)